Open Study of the Neurobiological Effects of Intranasal Ketamine in Children and Adults With Bipolar Disorder

January 26, 2022 updated by: Martin H Teicher, Mclean Hospital

Open Study of the Neurobiological Effects of Intranasal Ketamine in Children and Adults With Bipolar Disorder - Fear of Harm Phenotype

Aim 1: Test the hypothesis that participants with Bipolar Disorder - Fear of Harm Phenotype have an enhanced amygdala fMRI response to fearful threatening stimuli, increased resting beta and gamma EEG spectral activity in temporal leads and blunted posterior insula response to cold when partially withdrawn from ketamine with normalization of these responses following intranasal administration of ketamine.

Aim 2. Test the hypothesis that ketamine alters response to fearful-threatening visual stimuli and cold sensation by altering functional connectivity of the amygdala and insula with the hypothalamus, thalamus, hippocampus and ventromedial prefrontal cortex, and identify specific alterations that correlate with degree of pre-post ketamine change.

Aim 3. Test the hypothesis that low-dose medicinal ketamine, unlike high-dose recreation ketamine, is not associated with an increase in number of focal areas of abnormality on morphometric scans based on duration of use.

Study Overview

Status

Recruiting

Conditions

Intervention / Treatment

Detailed Description

Clinically, the Fear of Harm phenotype is characterized by early age of onset, severe mood swings, treatment resistance, separation anxiety, fearful-aggressive obsessions, parasomnias (e.g. night-terrors) and thermal dysregulation (Papolos et al. 2009). These youth typically received little benefit from standard treatments (i.e., antipsychotic medication and mood stabilizers) often wind up home-schooled due to excessive fears of the school environment and frequently require multiple periods of inpatient care (Papolos et al. 2009; Papolos et al. 2013). Key features seen in FOH that distinguish these youths from other youths with BD include fear sensitization and thermal dysregulation. Children with FOH often experience thermal discomfort (e.g., feeling hot, excessive sweating) in neutral ambient temperature conditions, as well as no discomfort during exposure to the cold, and alternate noticeably between being excessively hot in the evening and cold in the morning (Murphy, Frei, and Papolos 2014). Ketamine, an NMDA receptor antagonist was selected as a potential treatment for FOH because of its effectiveness in the reduction of fear sensitization and capacity to dose-dependently lower body temperature in animal studies, and has been found to be clinically efficacious in the treatment of FOH (Papolos et al. 2018; Papolos et al. 2013). There are two main reasons for proposing to conduct a neuroimaging study. First, intranasal ketamine can produce an almost immediate improvement in clinical state. This makes it possible to scan a subject whose dose of ketamine has largely worn off in order to assess blood flow and functional connectivity and then to rescan the individual within hours of receiving intranasal ketamine in order to correlate degree of clinical improvement with alterations in blood flow and connectivity. This will provide information on both the neurobiological basis of ketamine response and information on the possible biological underpinnings of FOH. Second, there is some concern, based on a report of examining brain scans in chronic ketamine abusers, that ketamine in daily doses 10X higher than clinically prescribed every 3-4 days can produce some evidence for structural brain damage4. Hence, it would be valuable to scan individuals undergoing long term treatment with intranasal ketamine to rule out or monitor for pathological changes in brain structure.

Study Type

Observational

Enrollment (Anticipated)

20

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Locations

    • Massachusetts
      • Belmont, Massachusetts, United States, 02478
        • Recruiting
        • McLean Hospital
        • Contact:
        • Principal Investigator:
          • Martin H Teicher, MD, PHD

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

14 years to 40 years (Child, Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Sampling Method

Non-Probability Sample

Study Population

Total sample size will be 20 subjects, with approximately equal number of males and females.

Subjects recruited for the study will be between 14-40-years-of-age who meet DSM-5 criteria for Bipolar Disorder, Papolos criteria for FOH Phenotype, have been taking intranasal ketamine for at least two months

Description

Inclusion Criteria:

  • Males and Females
  • Age 14 - 40 years
  • Clinical diagnosis of Bipolar Disorder -Fear of Harm Phenotype
  • Meets Papolos criteria for FOH based on independent interviews.
  • Taking intranasal ketamine for at least 2 months.
  • Must be on an every three or every four-day dosing regimen
  • Dosage will not exceed 300 mg per dosing interval.
  • Willing to delay ketamine dose by 2 days past their prescribed dosing interval
  • Prior experience having tolerated this degree of delay.
  • Willing to participate in daily assessments during period of ketamine withdrawal prior to traveling to Belmont ,MA.
  • Willing to provide urine sample to screen for drugs of abuse (all participants and pregnancy in females.)

Exclusion Criteria:

  • Any psychiatric hospitalization within the past 6 months
  • Lifetime history of suicide attempts
  • Co-occurring substance use disorders
  • Any change in concomitant medications within the last 2 months

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Observational Models: Cohort
  • Time Perspectives: Prospective

Cohorts and Interventions

Group / Cohort
Intervention / Treatment
Participant Group
Participants will all have history of good to excellent clinical response to intranasal ketamine for at least two months and on a treatment schedule varying from use every other day to every fifth day. Participants will be tested one or two days beyond their customary administration date and again 2-3 hours after their administration of ketamine.
Intranasal administration of their customary prescribed dose

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
BOLD fMRI response in amygdala
Time Frame: Prior to and 2-3 hours following ketamine administration
Change in BOLD measured by functional Magnetic Resonance Imaging (fMRI) to images of threatening versus neutral facial expressions.
Prior to and 2-3 hours following ketamine administration
BOLD fMRI response in posterior insula
Time Frame: Prior to and 2-3 hours following ketamine administration
Correlation between BOLD measured by functional Magnetic Resonance Imaging (fMRI) and degree of cold stimulation of non-dominant hand.
Prior to and 2-3 hours following ketamine administration

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Functional connectivity between amygdala and insula
Time Frame: Prior to and 2-3 hours following ketamine administration
Seed-to-seed and seed-to-voxel functional connectivity analysis of rs-fMRI data.
Prior to and 2-3 hours following ketamine administration
EEG spectral activity measures
Time Frame: Prior to and 2-3 hours following ketamine administration
Absolute and relative power in low beta (15-26), high beta (28-40), low gamma (42-53) and high gamma (55-67) frequency bands using 32-channel Electrical Geodesics, Inc. EEG.
Prior to and 2-3 hours following ketamine administration
Profile of Mood State (POMS) scale.
Time Frame: Prior to and 2-3 hours following ketamine administration
Ratings of tension and total mood score on the POMS.
Prior to and 2-3 hours following ketamine administration

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Investigators

  • Principal Investigator: Martin H Teicher, MD, PhD, McLean Hospital

Publications and helpful links

The person responsible for entering information about the study voluntarily provides these publications. These may be about anything related to the study.

General Publications

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 4, 2019

Primary Completion (Anticipated)

December 31, 2022

Study Completion (Anticipated)

January 15, 2023

Study Registration Dates

First Submitted

October 26, 2018

First Submitted That Met QC Criteria

January 25, 2022

First Posted (Actual)

January 26, 2022

Study Record Updates

Last Update Posted (Actual)

January 27, 2022

Last Update Submitted That Met QC Criteria

January 26, 2022

Last Verified

January 1, 2022

More Information

Terms related to this study

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

No

IPD Plan Description

There is no plan to share with other researchers

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

Yes

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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